一种面向空基网络的动态TDMA信道分配算法

A Dynamic TDMA Channel Allocation Algorithm for Airborne Network

本文首先分析了空基网络的固定TDMA信道分配方式,在软件定义网络(SDN)架构的基础上提出了一种适用于空基网络业务传输的动态信道分配(Dynamic Channel Allocation,DCA)算法,将数据面与控制面分离,实现了动态规划时隙分配。最后给出的仿真结果表明,与传统的固定TDMA分配算法对比,DCA算法能够明显提升高优先级突发消息的传输效率、降低传输时延,有效地调整了流量分配,为固定信道分配算法不能完全适配空基网络流量提供了解决方法。

This paper analyzes the fixed TDMA channel allocation algorithm of airborne network at first.Based on the SDN architecture,a dynamic allocation algorithm which is suitable for airborne network services is proposed.Time slots are allocated dynamically by decoupling control plane and data plane.Finally,the evaluation shows that the dynamic allocation algorithm performs better than the fixed alloca-tion algorithm in terms of transmission delay,transmission efficiency of high-priority messages and flow allocation,which provides a solution to the problem that the fixed channel allocation algorithm cannot fully adapt to the network flow.